<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">
    <div>购物车数量:{{count}}</div>
    <button @click="increment">添加</button>
    <button @click="add">别名添加</button>
</div>
</body>
<script src="../../js/vuex.js"></script>
<script src="../../js/vue.js"></script>
<script type="text/javascript">
    const store=new Vuex.Store({
        state:{
            count:0
        },
        mutations:{
            increment(state){
                state.count++
            },
        },
        actions:{
            increment({commit}) {
                commit('increment')
            }
        }
    })

    var vm=new Vue({
        el:'#app',
        store,
        methods:{
            ...Vuex.mapActions([
                'increment'
            ]),
            ...Vuex.mapActions({
                add:'increment'
            })
        },
        computed:{
            count(){
                return this.$store.state.count
            }
        }
    })
</script>
</html>
